Page sat down with legendary BBC DJ Johnnie Walker in London for a live video conversation about the upcoming collection. Prior to the conversation, at 2:30 p.m. EST the Led Zeppelin Facebook page premiered selections from the Complete BBC Sessions.

Arriving nearly 20 years after Zeppelin’s original BBC compilation, the Complete BBC Sessionsfeatures eight unreleased recordings, including a “lost” 1969 session that marked the lone recorded performance of the track “Sunshine Woman.” The Complete BBC Sessions is out September 16th.

The event concluded with the debut of the music video above for the BBC rendition of “What Is and What Should Never Be,” featuring Zeppelin concert footage alongside “innovative animation.”